How long does it take to replace exhaust manifold on the right side of a 1999 7.3L diesel?

Replacing the right-side exhaust manifold on a 1999 7.3L diesel engine typically takes about 4 to 6 hours, depending on the mechanic's experience and whether any complications arise, such as rusted bolts or additional necessary repairs. Access to the manifold can be challenging due to surrounding components, which may extend the time required. It's always best to consult a repair manual for specific procedures and tips.